Diaphragm



FIG. 1 is a perspective view of a diaphragm showing my new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a cross-sectional view thereof, corresponding to 8-8 of FIG. 2; and,

FIG. 9 is an enlarged view of the circled portion 9 of FIG. 1, showing detailed structure of the recessed/folded area. 

CLAIM The ornamental design for a diaphragm, as shown and described. 